public void When_ParseNotValidDouble()
{
var sut = new PermilleFormatter();
var actual = sut.ParseDouble("a12‰");
Assert.AreEqual(null, actual);
}
public void When_ParseDouble(string value, double?expected)
{
var sut = new PermilleFormatter();
sut.FractionDigits = 2;
var actual = sut.ParseDouble(value);
Assert.AreEqual(expected, actual);
}
public void When_ParseDoubleAndIsDecimalPointAlwaysDisplayedSetTrue(string value, double?expected)
{
var sut = new PermilleFormatter();
sut.FractionDigits = 2;
sut.IsDecimalPointAlwaysDisplayed = true;
var actual = sut.ParseDouble(value);
Assert.AreEqual(expected, actual);
}
public void When_ParseDoubleMinusZero()
{
var sut = new PermilleFormatter();
var actual = sut.ParseDouble("-0‰");
bool isNegative = false;
if (actual.HasValue)
{
isNegative = BitConverter.DoubleToInt64Bits(actual.Value) < 0;
}
Assert.AreEqual(true, isNegative);
}
public void When_ParseDoubleUsingSpeceficNumeralSystem(string numeralSystem)
{
var sut = new PermilleFormatter();
sut.NumeralSystem = numeralSystem;
var translator = new NumeralSystemTranslator {
NumeralSystem = numeralSystem
};
var translated = translator.TranslateNumerals("1234567.89‰");
var actual = sut.ParseDouble(translated);
Assert.AreEqual(1234.56789, actual);
}
